The Blades On Wind Turbines Are Spinning Super Fast

These fast-moving blades can also be massive: some are more than 150 ft (45 m) long. Today, thousands of wind turbines are in use around the world, converting wind power into electricity. Some people are opposed to the massive towers because of the noise they create, and others claim that the infrasound generated by the turbines can result in health problems. Though these health claims are largely unverified by science, researchers are looking into methods for reducing the noise caused by the turbines.